Natural History - Historic Arsenopyrite Crystal Formation

A pair of fluorite spheres displaying white, green and purple crystal formation and with rainbow reflections; both in a white cardboard display box. From China; from the historic ‘Victorian Museum��

An unusual quartz formation with finely formed crystals intergrown with another mineral, probably albite. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gre

Jurassic Period, 199-145 million years BP. A cut and polished ammonite with crystal formations in the cavities, from Madagascar. 705 grams, 15cm (6"). Property of a London lady; by inheritance; former

Comprising dark green malachite with tabular deep blue azurite crystals. 30 grams, 60 mm (2 1/2 in.). Collected in person from various parts of the world mainly between 1957-1966. From the private min

A natural sapphire crystal with triangular formations known as 'trigons' or 'record keepers'. 0.68 grams, 10mm (1/2"). Property of a Norfolk, UK, gentleman; acquired on the natural history art market.

A group of twenty yellow chunks of sulphur displaying clusters of small crystals. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory

Cretaceous Period, 145-65 million years BP. A raptor dinosaur femur with a quartz crystal core from Judith River Formation, Montana, U.S.A. 141 grams, 81mm (3 1/4"). From an old Bristol paleontologica

A sawn and polished pair of natural agate geodes with several 'eyes' and cavities filled with amethyst crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bottley &

A large piece of cut and polished malachite with lustrous sheen of pale and dark green, pale crystals between nodules. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley

A sawn and polished pair of banded white agate geodes with brown agate rim and centre hollow lined with quartz crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bo

A tray carved from an agate nodule, with quartz crystal rim; colour enhanced. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, B

A massive cut and polished agate slice showing bands of blue and brown colour to the border, honeycomb quartz crystals to the centre. From the historic ‘Victorian Museum’ or later collection of Gr

A sphere cut from an agate geode with a quartz crystal filling, the crystal terminations outlined by another mineral, probably hematite, with antique turned wood base. From the historic ‘Victorian M

A fine, transparent, gemmy crystal of dioptase with smaller side crystals, in plastic display box. From Namibia; From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Llo

A cut and polished fluorite crystal obelisk with bands of green and purple colour. 240 grams, 13cm (5"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (

A cut and polished fluorite crystal with bands of green and white colour. 175 grams, 90mm (3 1/2"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (1981-

A box of thirty eight amethyst clusters, ranging in colour from a pale, almost transluscent purple to a deep rich purple; some forming 'porcupine' blooms of clusters. From Brazil; from the historic ��

A grey Selenite faceted pillar with two lateral spurs. 1.6 kg, 43cm (17"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (1981-2014); formerly with Greg

A lilac coloured flourite crystal displaying numerous intergrowth cubes; in white card tray with label reading: 'FLUORITE Tri-State USA'. From USA; from the historic ‘Victorian Museum’ or later co

A group of fifty quartz points with clear colour and rainbow reflections. From Brazil; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gr

A group of ten Satin Spar Gypsum crystals in individual white card display boxes with label reading: GYPSUM var. 'satin spar' Morocco. 245 grams total, 50-55mm (2 - 2 1/4"). From a historic ‘Victori

A large, well-formed single crystal of rock crystal quartz. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.219. 752 grams, 14cm (5 1/2"). From the historic ‘Victorian Museum’ a

A group of twenty chunks of red calcite with waxy lustre. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-19

A well formed dolomite saddle-shaped crystal crust mass. From Mexico; from the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley &